Vattenfall has been awarded the Hesselø and North Sea I Mid offshore wind projects in Denmark's latest offshore wind tender, securing a combined minimum capacity of 1.8 GW (Vattenfall press release, 04/08/2026).
The Hesselø project, located in the Kattegat Sea, around 30 km offshore, will have a minimum installed capacity of 800 MW. The North Sea I Mid project, situated approximately 20 km off the Danish coast near Hvide Sande, is planned with a minimum capacity of 1 GW.
The projects have been granted permits for 30 years, with an option to extend operations by a further 10 years, while grid connections have been reserved for both projects, with connection points located approximately 50 km inland.
The awards expand Vattenfall's Danish offshore wind portfolio, which currently totals around 1.5 GW. The company operates five offshore wind facilities in Denmark, generating approximately 6.5 TWh/year of electricity, enough to supply around 1.5 million homes. The company plans to work with relevant authorities and partners to progress the development of both projects.
As of 2024, Denmark had an installed wind capacity of 7.5 GW, representing about 38% of total electric capacity (Enerdata’s Global Energy & CO2 data).
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